Advice Needed SD Signal out of HDMI Port

[Channel Hopper]

The Sky HD box also outputs at 576 from the HDMI port (and many of their broadcasts on 28 East look identical at the 720/1080 settings )

https://www.avforums.com/threads/ive-got-576i-out-of-sky-hd-do-i-get-a-medal.364462/